diff --git a/mirp/_images/utilities.py b/mirp/_images/utilities.py
index ff83de66..0ebc81b0 100644
--- a/mirp/_images/utilities.py
+++ b/mirp/_images/utilities.py
@@ -7,7 +7,7 @@
 from mirp._masks.base_mask import BaseMask
 
 
-class InteractivePlot:
+class InteractivePlot:  # pragma: no cover
 
     def __init__(
             self,